Resonant circuit which provides dual frequency excitation for ra

Details Resonant circuit which provides dual frequency excitation for ra Resonant circuit which provides dual frequency excitation for ra

1983-08-26

1984-09-18

Moose, Jr., Harry E.

Electricity: electrical systems and devices

Control circuits for electromagnetic devices

Systems for magnetizing, demagnetizing, or controlling the...

328235, 331151, 361160, H01F 720

Patent

active

044727550

ABSTRACT:
Disclosed is a ring magnet control circuit that permits synchrotron repetition rates much higher than the frequency of the cosinusoidal guide field of the ring magnet during particle acceleration. the control circuit generates cosinusoidal excitation currents of different frequencies in the half waves. During radio frequency acceleration of the particles in the synchrotron, the control circuit operates with a lower frequency cosine wave and thereafter the electromagnets are reset with a higher frequency half cosine wave. Flat-bottom and flat-top wave shaping circuits maintain the magnetic guide field in a relatively time-invariant mode during times when the particles are being injected into the ring magnets and when the particles are being ejected from the ring magnets.

REFERENCES:
patent: 2899601 (1959-08-01), Simmons
patent: 3214612 (1965-10-01), Hickey
patent: 3373325 (1968-03-01), Sipek et al.
"Ring Magnet Power Supply For A 500 MeV Synchrotron"--Praeg et al., Conference IEE-IAS, Toronto, Canada 1-5/10/78.
"Shaped Excitation Current for Synchrotron Magnets"--Foss et al., IEEE Transactions on Nuclear Science vol. NS-28, No. 3, 6/81.

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